Crack Propagation in Icosahedral Model Quasicrystals

Christoph Rudhart, Frohmut Rösch, Franz Gähler, Johannes Roth and Hans-Rainer Trebin
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Christoph Rudhart: Universität Stuttgart, Institut für Theoretische und Angewandte Physik
Frohmut Rösch: Universität Stuttgart, Institut für Theoretische und Angewandte Physik
Franz Gähler: Universität Stuttgart, Institut für Theoretische und Angewandte Physik
Johannes Roth: Universität Stuttgart, Institut für Theoretische und Angewandte Physik
Hans-Rainer Trebin: Universität Stuttgart, Institut für Theoretische und Angewandte Physik

A chapter in High Performance Computing in Science and Engineering ’03, 2003, pp 107-116 from Springer

Abstract: Summary Propagation of mode-I cracks in a three-dimensional model quasicrystal is studied by molecular dynamics simulations. The samples are endowed with an atomically sharp crack and subsequently loaded by linear scaling of the displacement field. The response of the system is then monitored during the simulation. In particular, the crack surface morphology is investigated in dependence of the orientation of the fracture plane. For this purpose, fracture surfaces perpendicular to two- and fivefold axes are compared. For both directions, brittle fracture with rough fracture surfaces is observed.

Keywords: Molecular Dynamic Simulation; Fracture Plane; Sharp Crack; Small Atom; Rough Fracture Surface (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1007/978-3-642-55876-4_8

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